JP2018026964A5 - - Google Patents
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- JP2018026964A5 JP2018026964A5 JP2016157897A JP2016157897A JP2018026964A5 JP 2018026964 A5 JP2018026964 A5 JP 2018026964A5 JP 2016157897 A JP2016157897 A JP 2016157897A JP 2016157897 A JP2016157897 A JP 2016157897A JP 2018026964 A5 JP2018026964 A5 JP 2018026964A5
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- JP
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- Prior art keywords
- conductor segment
- slot
- portions
- linear
- bent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004020 conductor Substances 0.000 description 35
- 238000005452 bending Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000000875 corresponding Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002320 enamel (paints) Substances 0.000 description 2
- 230000002093 peripheral Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 230000002452 interceptive Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
また、突出湾曲部14cは、一対の傾斜部14bの先端同士を連結するとともに、軸方向外側に湾曲して突出するように形成されている。突出湾曲部14cは、各傾斜部14bの先端から軸方向外側に湾曲する部分のみで構成される。
更に、クランク形状部14dは、突出湾曲部14cに形成され、図7(A)に示すように、一方の傾斜部14bから他方の傾斜部14bに向けて導体セグメント14の板厚t分だけずらすようになっている。
そして、各導体セグメント14において、図7(B)に示すように、一対の直線状部14aの各々と一対の傾斜部14bの各々との接続部分14e、突出湾曲部14cの湾曲している部分、及び一対の傾斜部14bの各々の先端と突出湾曲部14cとの接続部分14fが、全て同一の最小Rの曲げ半径rの曲げ加工部となっている。ここで、最小Rとは、導体セグメント14(導体素線)の板幅w以上、かつ、導体セグメント14の突出高さh1および2本の直線状部14aの間隔を固定したとき曲げ半径rによって決まる傾斜部14bの傾斜角θ1が概ね30度以上となる曲げ半径r以下のことを意味する。
Further, the projecting curved portion 14c is configured to connect the leading ends of the pair of inclined portions 1 4 b, and is formed so as to project axially curved outward. Projecting curved portion 14c is composed of only the portion which is curved axially outward from the distal end of the inclined portion 1 4 b.
Further, the crank-shaped portion 14d is formed in the protruding curved portion 14c and is shifted by the thickness t of the conductor segment 14 from one inclined portion 14b toward the other inclined portion 14b as shown in FIG. 7A. It is like that.
Then, in each conductor segment 14, as shown in FIG. 7B, the connecting portion 14e between each of the pair of linear portions 14a and each of the pair of inclined portions 14b, and the curved portion of the protruding curved portion 14c. And the connection part 14f of each front-end | tip of a pair of inclination part 14b and the protrusion curved part 14c is a bending process part with the same minimum R bending radius r. Here, the minimum R is equal to or greater than the plate width w of the conductor segment 14 (conductor wire), the protrusion height h1 of the conductor segment 14, and the bending radius r when the interval between the two linear portions 14a is fixed. It means that the inclination angle θ1 of the determined inclined portion 14b is equal to or less than the bending radius r that is approximately 30 degrees or more.
次に、2本目のU相の固定子巻線13の結線に戻り、図8(A)及び図11に示すように、導体セグメント14の一方の直線状部14aを第2スロット122の内側から6番目に挿入するとともに、他方の直線状部14aを第8スロット128の内側から5番目に挿入する。
これと同様の要領で、別の導体セグメント14の一方の直線状部14aを第14スロット1214 の内側から6番目に挿入するとともに、他方の直線状部14aを第20スロット1220の内側から5番目に挿入する。
Next, returning to connection of the two second U-phase stator winding 13, as shown in FIG. 8 (A) and FIG. 11, while the inner linear portion 14a of the second slot 12 2 of the conductor segments 14 It is inserted into the sixth from and inserted into the fifth and the other linear portion 14a from the inside of the eighth slot 12 8.
In the same manner as this, is inserted into the sixth one of the straight portions 14a of another conductor segment 14 from the inside of the 14 slots 12 1 4, inside the other linear portion 14a of the first 20 slot 12 20 Is inserted fifth.
次に、1本目のU相の固定子巻線13の結線に戻り、図8(A)及び図12に示すように、第44スロット12 44 の内側から3番目に挿入された導体セグメント14の他方の直線状部14aの端部14gを、周方向に第2スロット122に向かって折り曲げるとともに、第2スロット122の内側から2番目に挿入された導体セグメント14の一方の直線状部14aの端部14gを、周方向に第44スロット1244 に向かって折り曲げ、それぞれの端部14g同士を溶接によって接合する。
また、第8スロット128の内側から1番目に挿入された導体セグメント14の他方の直線状部14aの端部14gを、周方向に第14スロット1214に向かって折り曲げるとともに、第14スロット1214の内側から2番目に挿入された導体セグメント14の一方の直線状部14aの端部14gを、周方向に第8スロット128に向かって折り曲げ、それぞれの端部14g同士を溶接によって接合する。
Next, returning to the connection of the first U-phase stator winding 13, as shown in FIGS. 8A and 12, the conductor segment inserted third from the inside of the fourth 4th slot 12 4 4. 14 other ends 14g of the linear portion 14a of the peripheral with bent toward the second slot 12 2 in the direction, one of the straight second slot 12 2 conductor segments 14 inserted from the inside into the second The end portion 14g of the portion 14a is bent in the circumferential direction toward the fourth 4th slot 12 4 4 and the end portions 14g are joined to each other by welding.
Further, the end 14g of the other linear portion 14a of the eighth slot 12 conductor segments 14 are inserted from the inside to the first 8, together with the bent in the circumferential direction toward the first 14 slot 12 14, 14 slots 12 14 an end portion 14g of the one of the linear portions 14a of the conductor segments 14 inserted from the inside into the second, bent toward the circumferential direction to the eighth slot 12 8, joined by welding the respective end portions 14g to each other .
次に、2本目のU相の固定子巻線13の結線に戻り、図8(A)及び図12に示すように、第44スロット1244 の内側から7番目に挿入された導体セグメント14の他方の直線状部14aの端部14gを、周方向に第2スロット122に向かって折り曲げるとともに、第2スロット122の内側から6番目に挿入された導体セグメント14の一方の直線状部14aの端部14gを、周方向に第44スロット1244 に向かって折り曲げ、それぞれの端部14g同士を溶接によって接合する。
また、第8スロット128の内側から5番目に挿入された導体セグメント14の他方の直線状部14aの端部14gを、周方向に第14スロット1214に向かって折り曲げるとともに、第14スロット1214の内側から6番目に挿入された導体セグメント14の一方の直線状部14aの端部14gを、周方向に第8スロット128に向かって折り曲げ、それぞれの端部14g同士を溶接によって接合する。
Next, returning to the connection of the second U-phase stator winding 13, as shown in FIGS. 8A and 12, the conductor segment inserted seventh from the inside of the fourth 4th slot 12 4 4. 14 other ends 14g of the linear portion 14a of the peripheral with bent toward the second slot 12 2 in the direction, one of the straight second slot 12 2 conductor segments 14 inserted from the inside to the 6 th The end portion 14g of the portion 14a is bent in the circumferential direction toward the fourth 4th slot 12 4 4 and the end portions 14g are joined to each other by welding.
Further, the end 14g of the other linear portion 14a of the eighth slot 12 conductor segments 14 are inserted from the inside to the 5 th 8, together with the bent in the circumferential direction toward the first 14 slot 12 14, 14 slots 12 14 an end portion 14g of the one of the linear portions 14a of the conductor segments 14 inserted from the inside to the sixth, bent toward the circumferential direction to the eighth slot 12 8, joined by welding the respective end portions 14g to each other .
ここで、隣接する一方の導体セグメント14のクランク形状部14dは、図18(B)に示すように、隣接する他方の導体セグメント14の傾斜部14bの上側を横切る。この際に、隣接する他方の導体セグメント14の傾斜部14bの上角縁14baは、隣接する一方の導体セグメント14のクランク形状部14dに対して隙間を空けた下方に位置する。これは、隣接する他方の導体セグメント14の湾曲部14hの内側の曲げ半径r1が最小Rよりも小さいため、隣接する他方の導体セグメント14の傾斜部14bの傾斜開始のポイントが湾曲部14h側に寄り、隣接する一方の導体セグメント14のクランク形状部14dから離れることから、このクランク形状部14dの位置では隣接する他方の導体セグメント14の傾斜部14bの上角縁14baが下方に下がっているからである。
従って、この図17及び図18に示す場合には、隣接する導体セグメント14同士が干渉することなく、コイルエンドの高さをh1に低くすることができる。
しかしながら、湾曲部14hの内側の曲げ半径r1が最小Rよりも小さいため、導体セグメント14の絶縁被覆(エナメル被覆)の損傷を招くおそれがある。
Here, the crank-shaped portion 14d of one adjacent conductor segment 14 crosses the upper side of the inclined portion 14b of the other adjacent conductor segment 14, as shown in FIG. 18B. At this time, the upper corner edge 14ba of the inclined portion 14b of the other adjacent conductor segment 14 is positioned below the crank shape portion 14d of the adjacent one conductor segment 14 with a gap. This is because the bend radius r1 inside the curved portion 14h of the other adjacent conductor segment 14 is smaller than the minimum R, so that the inclination start point of the inclined portion 14b of the other adjacent conductor segment 14 is on the curved portion 14h side. The upper corner edge 14ba of the inclined portion 14b of the other adjacent conductor segment 14 is lowered downward at the position of the crank shape portion 14d because the crank shape portion 14d of the adjacent one conductor segment 14 moves away from the crank shape portion 14d. It is.
Therefore, in the case shown in FIGS. 17 and 18, the height of the coil end can be lowered to h1 without the adjacent conductor segments 14 interfering with each other.
However, since the bending radius r1 inside the curved portion 14h is smaller than the minimum R, there is a possibility that the insulating coating (enamel coating) of the conductor segment 14 may be damaged.
次に、図23を参照して、導体セグメント14の変形例について説明する。図23において、図7に示す部材と同一の部材については同一の符号を付し、その説明を省略することがある。
図23に示す導体セグメント14は、一対の直線状部14aと、一対の傾斜部14bと、突出湾曲部14cと、クランク形状部14dとを備えている。導体セグメント14は、断面略矩形状の導体素線の外周にエナメル被覆(絶縁被覆)を施すことによって形成される。
導体セグメント14の一対の直線状部14aは、図7に示す導体セグメント14の一対の直線状部14aと同様に、固定子コア11に形成された周方向に異なる一対のスロット12に差し込まれ、各直線状部14aの端部14gが周方向に折り曲げられ、同じく周方向に折り曲げられた、別個の導体セグメント14の端部14gに溶接によって接合される。
Next, with reference to FIG. 23, a description will be given of variations of the conductor segments 1 4. 23, the same members as those shown in FIG. 7 are denoted by the same reference numerals, and the description thereof may be omitted.
The conductor segment 14 shown in FIG. 23 includes a pair of linear portions 14a, a pair of inclined portions 14b, a projecting curved portion 14c, and a crank-shaped portion 14d. The conductor segment 14 is formed by applying an enamel coating (insulation coating) to the outer periphery of a conductor wire having a substantially rectangular cross section.
The pair of linear portions 14a of the conductor segment 14 are inserted into a pair of slots 12 different in the circumferential direction formed in the stator core 11, like the pair of linear portions 14a of the conductor segment 14 shown in FIG. An end 14g of each linear portion 14a is bent in the circumferential direction and joined to an end 14g of a separate conductor segment 14 which is also bent in the circumferential direction by welding.
また、突出湾曲部14cは、一対の傾斜部14bの先端同士を連結するとともに、軸方向外側に湾曲して突出するように形成されている。突出湾曲部14cは、図7に示す導体セグメント14の突出湾曲部14cと異なり、一対の傾斜部14bの各々の先端から軸方向に沿って外側に直線状に延びる一対の直線部14iを備えている。また、突出湾曲部14cは、一対の直線部14iの先端同士を連結する、軸方向外側に湾曲して突出する湾曲部14jを備えている。
また、クランク形状部14dは、突出湾曲部14cに形成され、図23(A)に示すように、一方の直線状部14bから他の直線状部14bに向けて導体セグメント14の板厚t分だけずらすようになっている。
Further, the projecting curved portion 14c is configured to connect the leading ends of the pair of inclined portions 1 4 b, and is formed so as to project axially curved outward. Unlike the protruding curved portion 14c of the conductor segment 14 shown in FIG. 7, the protruding curved portion 14c includes a pair of linear portions 14i that extend linearly outward from the tip ends of the pair of inclined portions 14b in the axial direction. Yes. The protruding curved portion 14c includes a curved portion 14j that curves and protrudes outward in the axial direction, connecting the ends of the pair of linear portions 14i.
Further, the crank-shaped portion 14d is formed in the protruding curved portion 14c, and as shown in FIG. 23A, from the one linear portion 14b toward the other linear portion 14b, the thickness t of the conductor segment 14 is equal to the thickness t. It ’s just shifted.
その後、一方の接続部分14fに相当する部分の外側面を、棒状部材を用いて突出湾曲部14cとなる部分が突出するように折り曲げるとともに、湾曲部14jとなる部分の内側面を、棒状部材を用いて折り曲げる。
そして、他方の接続部分14fに相当する部分の外側面を、棒状部材を用いて他方の傾斜部14bが一方の傾斜部14bと対称となるように折り曲げる。
最後に、他方の接続部分14eに相当する部分の内側面を、棒状部材を用いて他方の直線状部14aが一方の直線状部14aと平行となるように折り曲げる。これにより、導体セグメント14が完成する。
Thereafter, the outer surface of the portion corresponding to one of the connection portions 14f is bent using a rod-like member so that the portion that becomes the protruding curved portion 14c protrudes, and the inner surface of the portion that becomes the curved portion 14j is bent on the rod-like member. Use and fold.
Then, the outer side surface of the portion corresponding to the other connecting portion 14f is bent using a rod-shaped member so that the other inclined portion 14b is symmetrical with the one inclined portion 14b.
Finally, the inner surface of a portion corresponding to the other connection portion 14e, using a rod-like member bent like the other straight portion 14 a is parallel to the one of the linear portions 14 a. Thereby, the conductor segment 14 is completed.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016157897A JP6862715B2 (en) | 2016-08-10 | 2016-08-10 | Stator and rotating machine equipped with it |
DE102017114374.2A DE102017114374A1 (en) | 2016-08-10 | 2017-06-28 | Stator and rotating electric machine containing this |
US15/637,972 US10608492B2 (en) | 2016-08-10 | 2017-06-29 | Stator and rotating electrical machine including the same |
CN201710534509.8A CN107733116B (en) | 2016-08-10 | 2017-07-03 | Stator and rotating electric machine provided with same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016157897A JP6862715B2 (en) | 2016-08-10 | 2016-08-10 | Stator and rotating machine equipped with it |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2018026964A JP2018026964A (en) | 2018-02-15 |
JP2018026964A5 true JP2018026964A5 (en) | 2019-09-05 |
JP6862715B2 JP6862715B2 (en) | 2021-04-21 |
Family
ID=61018444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016157897A Active JP6862715B2 (en) | 2016-08-10 | 2016-08-10 | Stator and rotating machine equipped with it |
Country Status (4)
Country | Link |
---|---|
US (1) | US10608492B2 (en) |
JP (1) | JP6862715B2 (en) |
CN (1) | CN107733116B (en) |
DE (1) | DE102017114374A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018213266A1 (en) * | 2018-08-08 | 2020-02-13 | Em-Motive Gmbh | Stator of an electrical machine |
EP3979468A4 (en) | 2019-05-30 | 2023-01-04 | Hitachi Astemo Electric Motor Systems, Ltd. | Dynamo-electrical machine |
CN110829659A (en) * | 2019-10-18 | 2020-02-21 | 中国第一汽车股份有限公司 | Hairpin winding type motor stator and motor |
CN115242001A (en) * | 2021-04-23 | 2022-10-25 | 台达电子工业股份有限公司 | Hairpin conductor motor stator |
JP7254140B1 (en) * | 2021-10-04 | 2023-04-07 | 三菱電機株式会社 | Rotating electric machine |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4029519B2 (en) * | 1999-04-12 | 2008-01-09 | 株式会社デンソー | Vehicle alternator stator |
JP3707606B2 (en) * | 2000-02-07 | 2005-10-19 | 三菱電機株式会社 | Winding assembly of rotating electrical machine, manufacturing method thereof, and stator of rotating electrical machine using the winding assembly |
JP2001231203A (en) * | 2000-02-10 | 2001-08-24 | Mitsubishi Electric Corp | Ac generator for vehicle |
JP2003018778A (en) | 2001-07-03 | 2003-01-17 | Toyota Motor Corp | Electric motor |
JP3736754B2 (en) * | 2002-03-01 | 2006-01-18 | 株式会社デンソー | Vehicle alternator stator |
JP4688003B2 (en) | 2007-03-05 | 2011-05-25 | 株式会社デンソー | Rotating electric machine stator and rotating electric machine using the same |
JP5472057B2 (en) * | 2010-01-15 | 2014-04-16 | 株式会社デンソー | Stator winding winding method, stator winding winding device and stator winding manufacturing apparatus |
JP2013138594A (en) * | 2011-11-30 | 2013-07-11 | Sumitomo Electric Ind Ltd | Segment coil, manufacturing method of segment coil, wire material for segment coil, and stator |
CN104380574B (en) * | 2012-06-01 | 2016-11-16 | 株式会社安川电机 | Electric rotating machine, stator for electric rotating machine and vehicle |
US20140111055A1 (en) * | 2012-10-23 | 2014-04-24 | Remy Technologies, L.L.C. | Conductor with divot for improved form factor |
US9362785B2 (en) * | 2012-11-06 | 2016-06-07 | Lcdrives Corp. | Concentrated winding stator construction for high efficiency machine |
JP5505527B2 (en) * | 2013-02-04 | 2014-05-28 | アイシン・エィ・ダブリュ株式会社 | Bending machine and bending machine |
JP5959726B2 (en) * | 2013-04-02 | 2016-08-02 | 三菱電機株式会社 | Rotating electric machine stator |
JP5995883B2 (en) * | 2014-01-21 | 2016-09-21 | 三菱電機株式会社 | Rotating electric machine stator |
CN106663975B (en) * | 2014-08-07 | 2020-03-27 | 日立汽车***株式会社 | Stator for rotating electrical machine, and rotating electrical machine provided with same |
-
2016
- 2016-08-10 JP JP2016157897A patent/JP6862715B2/en active Active
-
2017
- 2017-06-28 DE DE102017114374.2A patent/DE102017114374A1/en not_active Withdrawn
- 2017-06-29 US US15/637,972 patent/US10608492B2/en not_active Expired - Fee Related
- 2017-07-03 CN CN201710534509.8A patent/CN107733116B/en not_active Expired - Fee Related
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